Tumblestones F

Fluorite Also known as Fluor-spar
Halide 4 usually heat treated
Green, purple, clear, yellow, pink, blue, magenta, red, and black
China, Canada, USA, South Africa, UK
Common
Not suitable to cleanse in water
Notes

Fluorite Green Also known as Fluor-spar
Halide 4. Usually heat treated
Green
Canada, USA, South Africa, UK
Common
Not suitable to cleanse in water
Notes

Fluorite Purple Also known as Fluor-spar
Halide 4. Usually heat treated
Purple pinky colour
Canada, USA, South Africa, UK
Common
Not suitable to cleanse in water
Notes

Fluorite Rainbow Also known as Fluor-spar
Halide 4 usually heat treated
Canada, USA, South Africa, UK
Common
Not suitable to cleanse in water
Notes

Fluorite Smokey

Halide 4 usually heat treated
Smokey brown/grey
Canada, USA, South Africa, UK
Common
Not suitable to cleanse in water
Notes

Fluorite yellow

Halide 4 usually heat treated
Yellow
Canada, USA, South Africa, UK
Common
Not suitable to cleanse in water
Notes

Fossilised Wood

Also known as petrified wood
Silicate 7
Brown, grey, green
The Petrified National Forest Park in Arizona is the most famous source also Argentina, Egypt
Czech Republic
Notes
Petrified wood has been around practically since time began. Under specific conditions the organic materials are replaced by agate, bit by bit, as it decomposes. Sometimes jasper, quartz and even opal can be found in fossilized wood. Most often it is brown, but can also be grey or green in colour.

Fuchsite

Silicate 2.5
Light to medium green
New Hampshire USA, Manitoba Canada
Not suitable to cleanse in water
Notes